WO2007071895A1 - Suspended rail fastening apparatus - Google Patents

Suspended rail fastening apparatus Download PDF

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Publication number
WO2007071895A1
WO2007071895A1 PCT/GB2006/003984 GB2006003984W WO2007071895A1 WO 2007071895 A1 WO2007071895 A1 WO 2007071895A1 GB 2006003984 W GB2006003984 W GB 2006003984W WO 2007071895 A1 WO2007071895 A1 WO 2007071895A1
Authority
WO
WIPO (PCT)
Prior art keywords
rail
assembly
suspending
railway
seat region
Prior art date
Application number
PCT/GB2006/003984
Other languages
French (fr)
Inventor
Stephen John Cox
Keith Poole
Andrew Garwood
Original Assignee
Pandrol Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pandrol Limited filed Critical Pandrol Limited
Priority to CA2640845A priority Critical patent/CA2640845C/en
Priority to US12/095,467 priority patent/US8833671B2/en
Priority to BRPI0621067-8A priority patent/BRPI0621067B1/en
Publication of WO2007071895A1 publication Critical patent/WO2007071895A1/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B9/00—Fastening rails on sleepers, or the like
    • E01B9/60—Rail fastenings making use of clamps or braces supporting the side of the rail
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B9/00—Fastening rails on sleepers, or the like
    • E01B9/66—Rail fastenings allowing the adjustment of the position of the rails, so far as not included in the preceding groups

Definitions

  • the present invention relates to railway rail fastening apparatus for suspending a railway rail above a rail foundation.
  • EP 0758418B discloses railway rail fastening apparatus for suspending a railway rail at discrete locations along its length above a rail foundation. As shown in Figures IA and IB of the accompanying drawings, this apparatus comprises a baseplate 3' having a rail seat region 20' above which a railway rail 1 is suspended when the apparatus is in use and two shoulders 4' located one on each side of the rail seat region 20' .
  • the apparatus further comprises two rail suspending assemblies 5' located when in use one on each side of the rail 1, each assembly 5' comprising an elastic member 6' for supporting the head 100 of the rail 1 on one side thereof, a bracket 7' for applying a lateral clamping force to the elastic member ⁇ ' , a wedge member 8' located when in use between associated one of the shoulders 4' and the bracket 7' for maintaining the lateral clamping force, and a clip 9' for securing the wedge member 8 'on the shoulder 4'.
  • railway rail fastening apparatus for suspending a railway rail at discrete locations along its length above a rail foundation, the apparatus comprising: two rail suspending assemblies located when in use one on each side of the rail, each assembly comprising an elastic member for supporting the head of the rail on one side thereof and a bracket for applying a lateral clamping force to the elastic member; wherein the rail suspending assembly on one side of the rail seat region is located such that the centre line of the assembly is offset with respect to that of the rail suspending assembly on the other side of the rail by x mm along the longitudinal axis of the rail, where x is 50 ⁇ x>0 mm.
  • the apparatus may further comprise two shoulders, located one on each side of a rail seat region of the rail foundation, above which the railway rail is suspended when the apparatus in use, each rail suspending assembly further comprising a wedge member located when in use between an associated one of the shoulders and the bracket of that assembly, thereby to maintain the said lateral clamping force.
  • the rail suspending assembly and shoulder on one side of the rail seat region are located such that the centre line of the assembly and shoulder is offset with respect to that of the rail suspending assembly and shoulder on the other side of the rail seat region by x mm along the longitudinal axis of the rail, where x is 50 ⁇ x>0 mm.
  • providing a longitudinal offset of a limited distance between the centre line of the rail suspending assembly on one side of the rail seat region with respect to that of the rail suspending assembly on the other side of the rail seat region provides improved resistance to creep of the rail.
  • the longitudinal resistance to creep is 14.76 kN for a particular assembly, whereas an offset of 25mm provides increased resistance to creep of 16.95kN, but at an offset of 90mm creep resistance is negligible.
  • Figures IA and IB show plan and part cross-sectional views respectively of conventional suspended rail fastening apparatus; and Figures 2A to 2D show respective plan, part cross- sectional, side and perspective views of a railway rail fastening apparatus embodying the present invention.
  • Apparatus embodying the present invention comprises two shoulders 4A, 4B located one on each side of a rail seat region 20 of a rail foundation 2.
  • a railway rail 1 is suspended above the rail seat region 20 by means of two rail suspending assemblies 5A, 5B located one on each side of the rail 1, each assembly 5A, 5B comprising an elastic member 6 made of rubber or similar material for supporting the head 100 of the rail 1 on one side thereof, a bracket 7 for applying a lateral clamping force to the elastic member 6, and a wedge member 8 located when in use between an associated one of the shoulders 4A, 4B and bracket 7 for maintaining the lateral clamping force.
  • the wedge member 8 which preferably has a serrated face which engages with a serrated face on a rail-facing surface of the associated shoulder 4A, 4B is held in place within the assembly 5 by means of a clip 9.
  • the clip 9 comprises an approximately U-shaped bar of round cross-section which, in use, lies in a substantially vertical plane.
  • Figure 2A shows that a centre line CL A of the rail suspending assembly 5A and shoulder 4A on one side of the rail 1 is offset along the longitudinal axis of the rail 1 from the centre line CL B of the rail suspending assembly 5B and shoulder 4B on the other side of the rail 1.
  • Figures 2A to 2D illustrate an embodiment in which the shoulders 4 hook in to a baseplate 3 which is secured to the rail foundation 2 by two offset bolts 35.
  • a baseplate may be retro-fitted to an existing rail foundation already having two offset bolt- receiving holes.

Abstract

Railway rail fastening apparatus, for suspending a railway rail (1) at discrete locations along its length above a rail foundation (2), comprises two rail suspending assemblies (4A, 4B) located when in use one on each side of the rail (1) . Each assembly (4A, 4B) comprises an elastic member (6) for supporting the head of the rail (1) on one side thereof and a bracket (7) for applying a lateral clamping force to the elastic member (6) ) . The rail suspending assembly (4A) on one side of the rail (1) is located such that the centre line (CLA)of the assembly (4A) is offset with respect to that (CLB) of the rail suspending assembly (4B) on the other side of the rail (1) by x mm along the longitudinal axis of the rail (1) , where x is 50≥x>0 mm.

Description

SUSPENDED RAIL FASTENING APPARATUS
The present invention relates to railway rail fastening apparatus for suspending a railway rail above a rail foundation.
EP 0758418B discloses railway rail fastening apparatus for suspending a railway rail at discrete locations along its length above a rail foundation. As shown in Figures IA and IB of the accompanying drawings, this apparatus comprises a baseplate 3' having a rail seat region 20' above which a railway rail 1 is suspended when the apparatus is in use and two shoulders 4' located one on each side of the rail seat region 20' . The apparatus further comprises two rail suspending assemblies 5' located when in use one on each side of the rail 1, each assembly 5' comprising an elastic member 6' for supporting the head 100 of the rail 1 on one side thereof, a bracket 7' for applying a lateral clamping force to the elastic member β' , a wedge member 8' located when in use between associated one of the shoulders 4' and the bracket 7' for maintaining the lateral clamping force, and a clip 9' for securing the wedge member 8 'on the shoulder 4'.
An important factor in such a suspended railway rail apparatus is the degree to which the apparatus resists longitudinal creep of the railway rail therethrough.
Although the performance of the apparatus disclosed in EP 0758418B is very good in this regard, improved performance would be an advantage.
According to an embodiment of the present invention there is provided railway rail fastening apparatus for suspending a railway rail at discrete locations along its length above a rail foundation, the apparatus comprising: two rail suspending assemblies located when in use one on each side of the rail, each assembly comprising an elastic member for supporting the head of the rail on one side thereof and a bracket for applying a lateral clamping force to the elastic member; wherein the rail suspending assembly on one side of the rail seat region is located such that the centre line of the assembly is offset with respect to that of the rail suspending assembly on the other side of the rail by x mm along the longitudinal axis of the rail, where x is 50≥x>0 mm.
The apparatus may further comprise two shoulders, located one on each side of a rail seat region of the rail foundation, above which the railway rail is suspended when the apparatus in use, each rail suspending assembly further comprising a wedge member located when in use between an associated one of the shoulders and the bracket of that assembly, thereby to maintain the said lateral clamping force. In this case, the rail suspending assembly and shoulder on one side of the rail seat region are located such that the centre line of the assembly and shoulder is offset with respect to that of the rail suspending assembly and shoulder on the other side of the rail seat region by x mm along the longitudinal axis of the rail, where x is 50≥x>0 mm.
Desirably, x is 30≥x>0mm, and preferably x is 30>x≥10mm. Even more desirably, x is 25≥x>0mm, more preferably x is 25≥x≥10mm, and even more preferably x=25mm.
Surprisingly, providing a longitudinal offset of a limited distance between the centre line of the rail suspending assembly on one side of the rail seat region with respect to that of the rail suspending assembly on the other side of the rail seat region provides improved resistance to creep of the rail. For example, if there is no offset at all, the longitudinal resistance to creep is 14.76 kN for a particular assembly, whereas an offset of 25mm provides increased resistance to creep of 16.95kN, but at an offset of 90mm creep resistance is negligible.
Reference will now be made, by way of example, to the accompanying drawings, in which:
Figures IA and IB (described above) show plan and part cross-sectional views respectively of conventional suspended rail fastening apparatus; and Figures 2A to 2D show respective plan, part cross- sectional, side and perspective views of a railway rail fastening apparatus embodying the present invention.
Apparatus embodying the present invention comprises two shoulders 4A, 4B located one on each side of a rail seat region 20 of a rail foundation 2. A railway rail 1 is suspended above the rail seat region 20 by means of two rail suspending assemblies 5A, 5B located one on each side of the rail 1, each assembly 5A, 5B comprising an elastic member 6 made of rubber or similar material for supporting the head 100 of the rail 1 on one side thereof, a bracket 7 for applying a lateral clamping force to the elastic member 6, and a wedge member 8 located when in use between an associated one of the shoulders 4A, 4B and bracket 7 for maintaining the lateral clamping force. The wedge member 8, which preferably has a serrated face which engages with a serrated face on a rail-facing surface of the associated shoulder 4A, 4B is held in place within the assembly 5 by means of a clip 9. The clip 9 comprises an approximately U-shaped bar of round cross-section which, in use, lies in a substantially vertical plane. Figure 2A shows that a centre line CLA of the rail suspending assembly 5A and shoulder 4A on one side of the rail 1 is offset along the longitudinal axis of the rail 1 from the centre line CLB of the rail suspending assembly 5B and shoulder 4B on the other side of the rail 1.
Figures 2A to 2D illustrate an embodiment in which the shoulders 4 hook in to a baseplate 3 which is secured to the rail foundation 2 by two offset bolts 35. This is advantageous, since such a baseplate may be retro-fitted to an existing rail foundation already having two offset bolt- receiving holes. However, it is also advantageous to employ an embodiment of the invention in a new rail installation, with or without a baseplate.

Claims

CLAIM :
1. Railway rail fastening apparatus for suspending a railway rail (1) at discrete locations along its length above a rail foundation (2), the apparatus comprising: two rail suspending assemblies (4A, 4B) located when in use one on each side of the rail (1) , each assembly (4A,
4B) comprising an elastic member (6) for supporting the head of the rail (1) on one side thereof and a bracket (7) for applying a lateral clamping force to the elastic member
(6); characterised in that the rail suspending assembly
(4A) on one side of the rail seat region is located such that the centre line (CLA) of the assembly (4A) is offset with respect to that (CLB) of the rail suspending assembly
(4B) on the other side of the rail (1) by x mm along the longitudinal axis of the rail (1) , where x is 50≥x>0 mm.
2. Apparatus as claimed in claim 1, further comprising two shoulders (4A, 4B), located one on each side of a rail seat region of the rail foundation (2), above which the railway rail (1) is suspended when the apparatus in use; each rail suspending assembly (4A, 4B) further comprising a wedge member (8) located when in use between an associated one of the shoulders (4A, 4B) and the bracket (7) of that assembly (4A, 4B), thereby to maintain the said lateral clamping force; wherein the rail suspending assembly (4A, 4B) and shoulder (4A, 4B) on one side of the rail seat region are located such that the centre line of the assembly (4A, 4B) and shoulder (4A, 4B) is offset with respect to that of the rail suspending assembly (4A, 4B) and shoulder (4A, 4B) on the other side of the rail seat region by x mm along the longitudinal axis of the rail (1), where x is 50≥x>0 mm.
3. Apparatus as claimed in claim 1 or 2, wherein x is 30≥x>0mm.
4. Apparatus as claimed in claim 3, wherein x is 30≥x≥10mm.
5. Apparatus as claimed in claim 1 or 2, wherein x is 25≥x>0mm.
6. Apparatus as claimed in claim 5, wherein x is 25≥x≥10mm.
7. Apparatus as claimed in claim 1 or 2, wherein x is approximately 25mm.
PCT/GB2006/003984 2005-12-20 2006-10-26 Suspended rail fastening apparatus WO2007071895A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA2640845A CA2640845C (en) 2005-12-20 2006-10-26 Suspended rail fastening apparatus
US12/095,467 US8833671B2 (en) 2005-12-20 2006-10-26 Suspended rail fastening apparatus
BRPI0621067-8A BRPI0621067B1 (en) 2005-12-20 2006-10-26 RAILWAY RAIL SET

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0525883A GB2433532B (en) 2005-12-20 2005-12-20 Suspended rail fastening apparatus
GB0525883.5 2005-12-20

Publications (1)

Publication Number Publication Date
WO2007071895A1 true WO2007071895A1 (en) 2007-06-28

Family

ID=35840762

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2006/003984 WO2007071895A1 (en) 2005-12-20 2006-10-26 Suspended rail fastening apparatus

Country Status (7)

Country Link
US (1) US8833671B2 (en)
CN (1) CN101321915A (en)
BR (1) BRPI0621067B1 (en)
CA (1) CA2640845C (en)
GB (1) GB2433532B (en)
TW (1) TWI374095B (en)
WO (1) WO2007071895A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1020703A3 (en) * 2011-02-18 2014-04-01 Ortwein Hermann ELASTIC RAIL SOLE.

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2433532B (en) * 2005-12-20 2011-01-12 Pandrol Ltd Suspended rail fastening apparatus
CN202298374U (en) * 2011-10-29 2012-07-04 青岛科而泰环境控制技术有限公司 Rail fixing device with vertical orientation
CN103088723B (en) * 2011-10-29 2015-10-28 青岛科而泰环境控制技术有限公司 Track elasticity fastening devices
CN103088724B (en) * 2011-10-29 2015-06-10 青岛科而泰环境控制技术有限公司 Rail fixing device with function of vertical guidance
CZ23871U1 (en) * 2011-12-21 2012-05-24 DT-výhybkárna a strojírna a.s. Device for fastening rails
CN102587227A (en) * 2012-04-16 2012-07-18 张海洋 Fastener structure for adjusting track gauge
US10081915B2 (en) * 2016-07-20 2018-09-25 Progress Rail Services Corporation Track rail fastening mechanism and method
GB2559577B (en) * 2017-02-08 2020-11-18 Schwihag Ag Combination of a rail chair and a spring element for securing a railway rail to the chair
US10400397B2 (en) * 2017-03-31 2019-09-03 Voestalpine Nortrak Inc. Boltless rail brace
US11098454B2 (en) * 2019-04-01 2021-08-24 Progress Rail Services Corporation Track rail fastener and system for pedestal mounted track rail
CN113818290B (en) * 2021-11-22 2022-01-28 成都中拓科技有限公司 Continuous support floating rail type fastener system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0758418B1 (en) * 1995-03-06 1998-05-27 Pandrol Limited Rail-fastening assembly

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE117632C (en)
DE31709C (en) G. A. ; agthe in Riga, Rufsland Fastening of rails to iron supports by means of wing supports
US1274118A (en) * 1917-11-21 1918-07-30 John F Wedgeworth Tie-plate.
US1333894A (en) * 1919-03-31 1920-03-16 James G Bennett Tie and fastener
US1571008A (en) * 1922-05-03 1926-01-26 Bethlehem Steel Corp Rail-fastening means
US1466159A (en) * 1922-08-25 1923-08-28 John R Calderon Anchor plate
US1709731A (en) * 1928-09-27 1929-04-16 John A Mcgrew Tie plate and rail fastener
US1813941A (en) * 1930-05-31 1931-07-14 Matthew H Loughridge Railway tie and rail fastening
US2072871A (en) * 1933-06-12 1937-03-09 Edwards Cliff Rail end connecter
GB529192A (en) * 1939-05-24 1940-11-15 Robert Donald Thain Alexander Improvements in or relating to means for fixing rails to sleepers
US2905391A (en) * 1956-01-27 1959-09-22 Arthur I Appleton Key type rail anchor
US3525472A (en) * 1966-08-30 1970-08-25 Japan National Railway Vibration-suppressing composite rail for railways
DE3540128A1 (en) * 1985-11-13 1987-05-14 Clouth Gummiwerke Ag ELASTIC BEARING RAIL FOR RAIL VEHICLES
US4770342A (en) * 1987-02-05 1988-09-13 Abc Rail Corporation Adjustable rail brace
DE9007733U1 (en) 1990-03-13 1994-11-03 Ortwein Hermann Elastic rail for rail vehicles
DE4007937C2 (en) 1990-03-13 2002-03-21 Hermann Ortwein Elastic rail for rail vehicles
US5104041A (en) * 1990-10-01 1992-04-14 Abc Rail Corporation Rail brace assembly
DE19646133A1 (en) * 1996-11-08 1998-05-14 Hermann Ortwein Substructure for a track for rail vehicles
GB9917146D0 (en) * 1999-07-21 1999-09-22 Pandrol Ltd Suspended rail fastening assembly
US6308897B1 (en) * 2000-04-12 2001-10-30 James A. Remington Lateral and vertical rail brace assembly
GB2433532B (en) * 2005-12-20 2011-01-12 Pandrol Ltd Suspended rail fastening apparatus
US7641128B2 (en) * 2006-06-29 2010-01-05 Cleveland Track Material, Inc. Rail brace assembly

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0758418B1 (en) * 1995-03-06 1998-05-27 Pandrol Limited Rail-fastening assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1020703A3 (en) * 2011-02-18 2014-04-01 Ortwein Hermann ELASTIC RAIL SOLE.

Also Published As

Publication number Publication date
TW200724425A (en) 2007-07-01
US20090224063A1 (en) 2009-09-10
GB0525883D0 (en) 2006-02-01
CA2640845A1 (en) 2007-06-28
US8833671B2 (en) 2014-09-16
TWI374095B (en) 2012-10-11
CN101321915A (en) 2008-12-10
GB2433532A (en) 2007-06-27
GB2433532B (en) 2011-01-12
CA2640845C (en) 2013-09-24
BRPI0621067B1 (en) 2018-03-27
BRPI0621067A2 (en) 2011-11-29

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